{"id":72014,"date":"2024-10-17T16:11:26","date_gmt":"2024-10-17T16:11:26","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d7284-2008\/"},"modified":"2024-10-24T19:02:46","modified_gmt":"2024-10-24T19:02:46","slug":"astm-d7284-2008","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d7284-2008\/","title":{"rendered":"ASTM-D7284 2008"},"content":{"rendered":"<\/p>\n

1.1 This test method is used to determine the concentration of total cyanide in an aqueous wastewater or effluent. The method detects the cyanides that are free (HCN and CN –<\/sup> ) and strong-metal-cyanide complexes that dissociate and release free cyanide when refluxed under strongly acidic conditions.<\/p>\n

1.2 This method may not be applicable to process solutions from precious metals mining operations.<\/p>\n

1.3 This procedure is applicable over a range of approximately 2 to 400 ?<\/span> g\/L (parts per billion) total cyanide. Higher concentrations can be measured with sample dilution or lower injection volume.<\/p>\n

1.4 The determinative step of this method utilizes flow injection with amperometric detection based on Test Method D 6888 . Prior to analysis, samples must be distilled with a micro-distillation apparatus described in this test method or with a suitable cyanide distillation apparatus specified in Test Methods D 2036 .<\/p>\n

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.<\/span> Specific hazard statements are given in Note 2 and Section 9.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology
Summary of Test Method <\/td>\n<\/tr>\n
2<\/td>\nSignificance and Use
Interferences
Apparatus and Instrumentation
FIG. 1 <\/td>\n<\/tr>\n
3<\/td>\nReagents and Materials
TABLE 1
FIG. 2 <\/td>\n<\/tr>\n
4<\/td>\nHazards
Sample Collection and Preservation
Elimination of Interferences
Procedure <\/td>\n<\/tr>\n
5<\/td>\nCalibration and Standardization
Data Analysis and Calculations
Precision and Bias
Quality Assurance and Quality Control
TABLE 2 <\/td>\n<\/tr>\n
6<\/td>\nKeywords
TABLE 3 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D7284-08 Standard Test Method for Total Cyanide in Water by Micro Distillation followed by Flow Injection Analysis with Gas Diffusion Separation and Amperometric Detection<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2008<\/td>\n6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":72015,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[216,2637],"product_tag":[],"class_list":{"0":"post-72014","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-060-50","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/72014","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/72015"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=72014"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=72014"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=72014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}